Abstract
Multi-cell tubular structures are gaining much interest in the crashworthiness field, owing to their extensive applications in automotive vehicles as lightweight energy-absorbing structures in collision events. The current paper examines the numerical simulation of axial impact loading of thin-walled aluminium multi cellular polygonal tube of different configurations. Nonlinear impact simulations were performed on multi cellular polygonal tubes using finite element ABAQUS/CAE explicit code to examine the influence of stiffeners. From the overall results obtained, the crashworthiness performance of the proposed multi cellular tubes of various configurations were compared. Moreover, square section multi-cellular tubes were retained as most prominent for higher specific energy absorption. This type of structures was found to be effective one to improve the crashworthiness performance during impact events.
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